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Home >> Mercedes Benz >> 2012 >> CL550 >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System - Body - 216 Chassis - 2 Of 9 >> Basic Knowledge >> Universal Portable CTEL Interface (UPCI), function >> Universal Portable CTEL Interface (UPCI), function - GF82.70-P-0004SXX

Universal Portable CTEL Interface (UPCI), function - GF82.70-P-0004SXX

MODEL 221.0/1 as of 1.9.06 with CODE (494) USA version up to Model Year 8 

MODEL 221.0/1 with CODE (389) Mobile phone preinstallation with universal interface, USA/Canada up to Model Year 8 

MODEL 216.3 with CODE (494) USA version up to Model Year 8 

Location of components shown on model 221 

Fig 1: Universal Portable CTEL Interface (UPCI) Components Location - Shown On Model 221
G10112241Courtesy of MERCEDES-BENZ USA

Location of components shown on model 221 with code (396) Linguatronic - English (US) 

Fig 2: Universal Portable CTEL Interface (UPCI) Components Location - Shown On Model 221 With Code (396)
G10112242Courtesy of MERCEDES-BENZ USA

Networking of components 

Fig 3: COMAND Controller Unit Communication Diagram
G10112243Courtesy of MERCEDES-BENZ USA

Networking of components shown on model 221 with code (396) Linguatronic - English (US) 

Fig 4: COMAND Controller Unit And Wake-Up Line Communication Diagram - Shown On Model 221 With Code (396)
G10112244Courtesy of MERCEDES-BENZ USA

Function requirements:

The combination of the Universal Portable CTEL Interface (UPCI [UHI]) control unit and the relevant UPCI [UHI] portable CTEL holder (Universal Portable CTEL Interface) makes it possible to operate different portable CTELs (e.g. Motorola). In addition, it is also possible to operate devices with Bluetooth capability (e.g. laptop).

IMPORTANT Phone calls can be made in "private mode" using a Bluetooth headset.

IMPORTANT The Universal Portable CTEL Interface (UPCI [UHI]) system is provided as a complete preinstallation. In model 221 with code (396) Linguatronic - English (US) it also contains the voice control system (VCS [SBS]). In model 216, the VCS [SBS] is installed as standard.

The vehicle is equipped with the complete preinstallation comprising the following components:

The UPCI [UHI] system consists of the following components:

The UPCI system contains the following functions:

The volume of the audio speaker system can be set individually by the user. This is possible using the MFL's integrated buttons + and - for setting specific functions and volume control or using the portable CTEL.

Several displays (e.g. "ENTER PIN"), which inform the user about the operating condition of the portable CTEL, are used to show the functions in the following components:

Universal Portable CTEL Interface (UPCI [UHI]) log-in GF82.70-P-0004-03SX 
Universal Portable CTEL Interface (UPCI [UHI]) cellular phone subscriber to public telephone network GF82.70-P-0004-04SX 
Universal Portable CTEL Interface (UPCI [UHI]) cellular phone subscriber to cellular phone subscriber GF82.70-P-0004-05SX 
Universal Portable CTEL Interface (UPCI [UHI]) General information GF82.70-P-0004-06SX 
Telephone switch-on/switch-off characteristics, function GF82.70-P-2007SX 
Setting up/ending phone call, function GF82.70-P-2008SX 
Phone call acceptance, function GF82.70-P-2009SXX